Home / 379,176.96-523,296.75-209,443.89

Finding the Fourth Proportional to 379,176.96, 523,296.75 and 209,443.89

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Solution

The fourth proportional to 379,176.96, 523,296.75 and 209,443.89 is: 289,050.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,176.96 : 523,296.75 = 209,443.89 : x
  2. Step 2: Convert to fraction form
    379,176.96/523,296.75 = 209,443.89/x
  3. Step 3: Cross multiply
    379,176.96x = 523,296.75 × 209,443.89
  4. Step 4: Simplify right side
    379,176.96x = 109,601,306,944.36
  5. Step 5: Solve for x
    x = 109,601,306,944.36/379,176.96
  6. Step 6: Final answer
    x = 289,050.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.